PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MPM04-5011Muffler,exhaust

Donaldson Company, Inc. · NSN 2990-00-142-0760 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-142-0760 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-142-0760. Primary manufacturer part number: MPM04-5011.
Features
  • Muffler,exhaust — FSC 2990
  • Inlet Location: CENTRALLY LOCATED IN END SECTION OF BODY
  • Outlet Location: CENTRALLY LOCATED IN END SECTION OF BODY
  • Inlet Thread Location: EXTERNAL SINGLE INLET
  • Outlet Thread Size: 1-1/4-11-1/2 FIRST OUTLET
  • Thread Location: EXTERNAL FIRST OUTLET
  • Muffler Design: BAFFLE
  • Overall Diameter: 4.375 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-142-0760, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Donaldson Company, Inc.. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2990-00-142-0760
Primary Part NumberMPM04-5011
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerDonaldson Company, Inc.
StatusCANCELLED
Inlet LocationCENTRALLY LOCATED IN END SECTION OF BODY
Outlet LocationCENTRALLY LOCATED IN END SECTION OF BODY
Inlet Thread LocationEXTERNAL SINGLE INLET
Outlet Thread Size1-1/4-11-1/2 FIRST OUTLET
Thread LocationEXTERNAL FIRST OUTLET
Muffler DesignBAFFLE
Overall Diameter4.375 INCHES NOMINAL IN
Surface TreatmentPAINT
FSC Application DataEXHAUST MUFFLERS,ENGINE,EXCEPT AIRCRAFT AND GUIDED MISSILE PRIME MOVING
Design TypeDRY
Thread DirectionRIGHT-HAND SINGLE INLET
Inlet Projection Length1.125 INCHES NOMINAL SINGLE INLET IN
Outlet Projection Length2.875 INCHES NOMINAL FIRST OUTLET IN
Inlet Thread Size1-1/4-11-1/2 SINGLE INLET
Operating PositionHORIZONTAL
Baffle Quantity2
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Coolant TypeAIR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5330-00-057-9768P17365 INTERCHANGEABLE
Gasket
Donaldson Company, Inc.
5325-00-262-9127B771137-1 INTERCHANGEABLE
Latch Guide,snapslide Fastener
Honeywell Intl Inc Defense Avionics Systems
5340-00-840-745540264-J INTERCHANGEABLE
Cap,protective,dust and Moisture
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
5330-01-173-9113 INTERCHANGEABLE
Kit,seal
Cross-Reference Index
Part NumberManufacturer
155C207 Cummins Power Generation Inc. (USA)
121031 Arnold a Semler Inc (USA)
SCC47830 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
M45011 Donaldson Company, Inc. (USA)
MPM04-5011 PRIMARY Donaldson Company, Inc. (USA)
155-207 Cummins Power Generation Inc. (USA)
Related Parts
5330-00-057-9768INTERCHANGEABLE
GASKET
P17365
5325-00-262-9127INTERCHANGEABLE
LATCH GUIDE,SNAPSLIDE FASTENER
B771137-1
5340-00-840-7455INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
40264-J
5330-01-173-9113INTERCHANGEABLE
KIT,SEAL

Frequently Asked Questions

What is NSN 2990-00-142-0760?

NSN 2990-00-142-0760 is a Muffler,exhaust, manufactured by Donaldson Company, Inc., classified under FSC 2990 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2990-00-142-0760?

NSN 2990-00-142-0760 has 6 cross-referenced part numbers: 155C207 (Cummins Power Generation Inc.), 121031 (Arnold a Semler Inc), SCC47830 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), M45011 (Donaldson Company, Inc.), MPM04-5011 (Donaldson Company, Inc.) and 1 more.

What NSN replaces 2990-00-142-0760?

There are 4 known substitutes for 2990-00-142-0760: 5330-00-057-9768, 5325-00-262-9127, 5340-00-840-7455 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MPM04-5011?

Key specifications for MPM04-5011: Inlet Location: CENTRALLY LOCATED IN END SECTION OF BODY; Outlet Location: CENTRALLY LOCATED IN END SECTION OF BODY; Inlet Thread Location: EXTERNAL SINGLE INLET; Outlet Thread Size: 1-1/4-11-1/2 FIRST OUTLET. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2990-00-142-0760 still in active supply?

NSN 2990-00-142-0760 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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